Update README.md

pull/19/head
Andre Richter 5 years ago committed by GitHub
parent 76b86a4997
commit ec70a2a9c2
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

@ -257,7 +257,7 @@ let big_addr: u64 = 3 * 1024 * 1024 * 1024;
unsafe { core::ptr::read_volatile(big_addr as *mut u64) }; unsafe { core::ptr::read_volatile(big_addr as *mut u64) };
``` ```
Finally, this triggers our exception code, because we try to read from a virtual address for which no address translations have been installed. Remember, we only installed identity-mapped page tables for the first 1 GiB of address space in lesson `0C`. Finally, this triggers our exception code, because we try to read from a virtual address for which no address translations have been installed. Remember, we only installed identity-mapped page tables for the first 1 GiB of address space in lesson `0D`.
After the exception handler is finished, it returns to the first instruction After the exception handler is finished, it returns to the first instruction
after the memory read that caused the exception. after the memory read that caused the exception.

Loading…
Cancel
Save